X l liqhtf



M DIO K-ERSON.

{No Model.)

LIGHTNING ARRESTER. N0. 474,46 9

Patented May 10, 189 2.

q q iwcam a M 4.

MALCOLM 'DiCKERSQN; OF FORT WAYNE, iNDlAirl egwzmmciwmii furmiag 1m sf zziaiim Patent No. 74369, d aited m 10, 1892.

dpplica'llon flied March 115, 15192. ilerial N0. $24,8 5, (No model.)

2% all whom it may bowie/arm- Be 1i) Emmi-n that i 'llliliicezim DICKERSON,

ll, citizen of il e Unitaad'itiazalzes, msiding; m5 l oi'ii "*"Jl Zi y'iie in. mainly of Allen klilll 55mm off Indiana, imveinvenled eel-t new and use- .{fii dlll and GXEWlI description imreniion all. as will enable others gkillad in the art w whiiili sippermins to make and use the same.

hi1? invailliiim relates; l devices for protect ill 6160 21 110 uii mii'fa @0111 inj dry when currents @(Ywil'blllifi h) ground, including in these paths :1, di charging dm'ice knuwii lightninglili may? through which aha higii-paieniial 3 mm pass, but wlileh. ml: a a barrier in escape (if ammonia of leave? potential.

Wimp mach davices are used. upon gleam-i0" Sugwl y cii'cuiis, llm eiaiiigio {if iigli-lvning-diw charge, for ammpie, Willi @sti'ililisli in me at liw dischargingpoints Ol' elosimdes, and this are, serving candmtoag will afford a, pal-iii of law maisiiamz-a for Lilli .suiiplymu-i'enm will and thus ElhDFiZ-Gllfillli; the line is alioiia eimuits, my prmrenii aim fm'mzition 0r cunilinuauee an am between Elm ifiil'ifiti'flfifis 0i llia diseimrging dm'ice. 4

Tlminvemion coasisss in iniai pusing l d iweeii iii-s dliicliiii'ge-pnints Oi @leslrodm a, new eon-dimling liquid. if the lina giioiiid. any

iamsion current will esiczipe i0 ground by CH3" mptiw-i discharge the) aleiiiz'mles,

the insulating-liquid will immediately 1310236 scribed in the speeiilcatmn, and delliiitelyiiv (limited in the dppmlded claiiiiii.

in the accempzmyimg d1: ling, which illiiis- View in? B, dailad ezi'iliodyiug' my i weniian,

B represenis mi insulating-base); which may be made of porcelain; glass, ovzmy othersnitable material, upon which aremnmited loinding-piisis. F F, by which connection may be made liotivee itlie earth and the supply-oil'- auib A. Electrodesa E E aim muunied between 116 binding-mam, one or bath of which may lie amide adjustable. Surrounding the electrodes is reservoir D, which may be made of any suimble materiai, provided with an insuleiilingcap (3. "Within the mmaptaele D is placed in insulating-liquid, such as oil. The I I mp1s erflimted, as at ll, to permit the escape 0f any gases which maybe formed. The apparatus is adjusted so that when in action a path .05 escape between the circuil; and the earth-plate G will be provided, the elemrodes and ll being adjusted so that their 'diS- charge points 0; surfaces will be out'of contact The dista-una may be arranged to suit; an desired potential and may vary ace ording" w the pawn tial of lhe mi 'i'sinz nm'mally cm:- riiill by the circuit A, As thus organized, the

'electi-odei E wiil be in electrical communim- H.011 with the circuit A and the eiecirede E with the earth, or vice versa. if new the line is raised at any time tea poi'eiiitial suff ciently high to cause a disruptive discharge betwaen tile electrodes E and. E, anesozipa will be afforded in earth; If no provisions Wei'a made t0 gum-d it, this disruptive discharge would establish an are at I, through which the Glilifiiii 0!. currents on the cii'cuitAwquld flow to earth and preserve closed circuit by lllflillillllillg their own are. l guard. againgl; s llil result by th s liquid resistance conllie receptacle D N0 10.. am he presm'ved. by reason of the amazing in (if this liquid after the dislmptive discharge. it will iheiefm-e b8 seen that the appamius will always be in cmfiition to afford a path in elamlli for lightningdischarges 0?. 9mm unusually high potentials, but will always prevent in short eirciiil im the ourclmiilming upon the lina it is designed 50 protein 8:111 aisingle number 0i discharge 'Qfiilitirl 0i cleutrodes lira slmwu in the draw ing. will. lwwevei', be understood thiiiiiilw elect-males might be arranged :50 as is provide i multipliiiihy 0i iSGilMglfiQGlfllS witlmnlde pariiugi'imn the spirit; at? the inventiumz rents of extraordinary potential having separated'points; between, which is an interposed insulatingdiqnid, whereby the high-potential current ma escape .by disruptive discharge and an are prevented or extinguished by the closing in of the liquid.

2. A discharging device for lightning or currents of extraordinary potential having a space between its discharging points or eurfaces filled with oil, for the purpose described.

3. A discharging device for lightning or currents of extraordinary potential having adjustable electrodes or discharging-points, the

space between the discharge-surfaces being filled with oil, for the purpose described.

4. The combination, with an electrlczsupply circuit, of a discharging rents of extraordinary potential havingseparated electrodes, and a cap or casing surround ing the electrodes at or near the point of separation, said cap containing an insulatingliqnid which fills the space between the discharging-surfaces.

In testimony whereof I afiix my signature in presence of two witnesses.

MALCOLM DICKERSQN.

Witnesses:

CECIL B. SLAGLE, ROBERT W. SMYTH.

device for cnr- 

